Hi Konrad,
Thank you for your compliment.
Query 1: 1. I do not know how to change the color of the arrows from blue to gray when I clicked on ComboBox.
The arrow background can be changed in ComboBox style for ToggleButton, where we have written the trigger condition when “IsChecked” property gets “True”.
Query 2: How to change color from blue to red, for example, when I clicked on the item.
For this requirement, you can change the border(named “Bd”) under ComboBoxItemAdv style, where “IsPressed” property is triggered to “True”
Query 3: Where is defined gray color (when I clicked on ComboBox)
You can use “IsMouseOver” property in the Trigger condition of the ToggleButton style to change the color of ComboBox when hovering the mouse. In ToggleButton, ComboBoxAdv color is defined based on the target name “chrome1”.
We have prepared sample, in which we have changed the MouseOver, Selected color of ComboBoxAdv and its items. Please download it from the below location.
Please let us know, whether it helps you.
Regards,
Keerthana J
